| Schedule of inventories |
| | | | | | | | | | | | | | | | As of | | As of | | | June 30, | | December 31, | | | 2026 | | 2025 | Raw materials | | $ | 1,139,868 | | $ | 1,090,884 | Work in progress | | | 134 | | | 57,308 | Finished goods | | | 2,353 | | | 1,354 | | | | 1,142,355 | | | 1,149,546 | Less reserve for obsolescence | | | (218,034) | | | (218,229) | Total inventories | | $ | 924,321 | | $ | 931,317 |
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| | | | | | | | | | | | | | | | 2025 | | 2024 | Raw materials | | $ | 1,090,884 | | $ | 830,121 | Work in progress | | | 57,308 | | | 1,838 | Finished goods | | | 1,354 | | | — | | | | | | | | | | | 1,149,546 | | | 831,959 | Less reserve for obsolescence | | | (218,229) | | | (229,230) | Total inventories | | $ | 931,317 | | $ | 602,729 |
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